More than 10 percent of all Chicago-area physicians on the Top Doctors list are Loyola physicians.

The magazine’s biennial list of outstanding Chicago-area doctors is published in the January issue.

In compiling the Top Doctors list, the magazine turned to New York-based Castle Connolly Medical, a respected healthcare research and information company. Castle Connolly conducts an annual nationwide survey of all licensed physicians. Physicians are asked to nominate as many as 10 doctors they consider the best in their own specialty, and as many as three doctors in other specialties. Respondents are asked to consider such factors as education, hospital appointment, board certifications and bedside manner.

Castle Connolly received more than 100,000 nominations during 2013. (Doctors cannot nominate themselves.) Researchers tracked which doctors received the most nominations, and reviewed each physician’s education, training, hospital affiliations and professional activities. Fewer than 1 percent of the nation’s physicians made the Top Doctor list.